Datasheet
MAX3353E
USB On-the-Go Charge Pump with Switchable
Pullup/Pulldown Resistors
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +2.6V to +5.5V, V
L
= +1.65V to V
CC
, V
TRM
= +3V to +3.6V, C
FLYING
= 0.1µF, V
CC
decoupled with 1µF capacitor to ground;
V
TRM
and V
L
decoupled with 0.1µF capacitor to ground; C
VBUS
= 1µF (min), T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical
values are at V
CC
= +4V, V
L
= +1.8V, V
TRM
= +3.3V, and T
A
= +25°C.) (Notes 3, 4)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS
ADD Pulldown Resistor 110 kΩ
ESD PROTECTION (V
BUS
, ID_IN, D+, D-)
Human Body Model ±15
IEC1000-4-2 Air-Gap Discharge ±11
ESD Protection
IEC1000-4-2 Contact Discharge ±6
kV
V
B U S
/ CHARGE-PUMP SPECIFICATIONS
(V
BUS_DRV
= 1, V
BUS_DISCHG
= 0, V
BUS_CHG1
= 0, V
BUS_CHG2
= 0, unless otherwise noted.)
V
BUS
Output Voltage V
BUS
I
VBUS
= 0 to 8mA, C
VBUS
= 1µF 4.63 5.25 V
V
BUS
Output Current I
VBUS
8mA
V
BUS
Short-Circuit Current V
BUS
shorted to GND 140 250 mA
Output Ripple I
VBUS
= 8mA, C
VBUS
= 1µF 100 mV
Efficiency V
CC
= 2.6V, I
VBUS
= 8mA 80 %
Switching Frequency f 600 kHz
V
BUS
Voltage in Three-State
Mode
V
BUS_DRV
= 0 0.2 V
V
BUS
Pulldown Resistance V
BUS_DRV
= 0, V
BUS_DISCHG
= 1 3.2 5.1 6.5 kΩ
V
BUS
Input Impedance V
BUS_DRV
= 0 40 100 kΩ
V
BUS
AND CURRENT SOURCE SPECIFICATIONS (V
BUS_CHG1
= 1, V
BUS_CHG2
= 0, V
BUS_DRV
= 0, V
BUS_DISCHG
= 0)
C
LOAD
= 15µF 2.1
V
BUS
Output Voltage V
BUS
C
LOAD
= 95µF 1.9
V
V
BUS
Current Source (Note 5) 450 600 850 µA
V
BUS
Current Gate Time V
BUS_CHG1
= 1, V
BUS_CHG2
= 0 (Note 5) 56 105 155 ms
COMPARATOR SPECIFICATIONS
V
BUS_VALID
Comparator
Threshold
4.40 4.55 4.63 V
V
BUS_VALID
Comparator
Hysteresis
20 mV
SESSION_VALID Comparator
Threshold
1.0 1.4 1.8 V
SESSION_VALID Comparator
Hysteresis
20 mV
B_SESSION_END Comparator
Threshold
0.4 0.5 0.6 V
B_SESSION_END Comparator
Hysteresis
35 mV
SINGLE-ENDED RECEIVERS AND SE0 SPECIFICATIONS (D+, D-)
Low-Level Input Threshold 0.8 V
High-Level Input Threshold 2.0 V